Public water system · IA3371056
ActiveWadena Water System
At a glance
Wadena Water System (PWSID IA3371056) is an active community water system in Fayette County, Iowa. It reports serving 209 people through 110 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
209
Service connections
110
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Wadena Water System compare with other water systems in Fayette County?
By EPA's size categories, Wadena Water System is a very small system (500 people or fewer). Fayette County has 23 active public water systems. Its population served is well below the county average of 634 people per system, and accounts for 1.4% of the 14,592 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active community water system reports serving 6,703 people, so Wadena Water System is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Iowa has 1,084 active community water systems, 59% of the state's 1,828 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,502 Iowa systems (82%) list groundwater as their primary source.
Who owns and regulates Wadena Water System?
EPA lists Wadena Water System as owned by a local government. The IA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 12 of the 23 active systems in Fayette County (52%) are also owned by a local government.
Does Wadena Water System have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2018. The violations listed here began between September 1980 and December 2018. By type: 10 monitoring and reporting, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 8 as archived and 4 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2018-12-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2016-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1980-09-30 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1980-09-30 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Archived |
| 1980-09-30 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Archived |
| 1980-09-30 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Archived |
| 1980-09-30 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 1980-09-30 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Archived |
| 1980-09-30 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Archived |
| 1980-09-30 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Archived |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Wadena Water System: frequently asked questions
Who runs Wadena Water System?
Wadena Water System (PWSID IA3371056) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Wadena Water System serve?
Wadena Water System reports serving 209 people through 110 service connections in Fayette County, Iowa.
Where does Wadena Water System get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Wadena Water System have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2018. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Wadena Water System's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Wadena Water System's water quality report?
As a community water system, Wadena Water System must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Fayette County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oelwein Municipal Water Works | Fayette | 5,920 | Community | Groundwater |
| West Union Water Supply | Fayette | 2,540 | Community | Groundwater |
| Fayette Water Supply | Fayette | 1,256 | Community | Groundwater |
| Elgin Municipal Water Supply | Fayette | 685 | Community | Groundwater |
| Clermont Water Supply | Fayette | 586 | Community | Groundwater |
| North Fayette Valley Community School | Fayette | 552 | Non-transient non-community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Wadena Water System, PWSID IA3371056, Iowa”, https://aquacensus.com/water-systems/iowa/wadena-water-system-ia3371056 (data as of October 1, 2026).